include/wx/filefn.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/filefn.h
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef   _FILEFN_H_
  13 #define   _FILEFN_H_
  14
  15 #include "wx/list.h"
  16 #include "wx/arrstr.h"
  17
  18 #ifndef __WXPALMOS5__
  19 #ifdef __WXWINCE__
  20     #include "wx/msw/wince/time.h"
  21     #include "wx/msw/private.h"
  22 #else
  23     #include <time.h>
  24 #endif
  25
  26 #ifdef __WXWINCE__
  27 // Nothing
  28 #elif !defined(__MWERKS__)
  29     #include <sys/types.h>
  30     #include <sys/stat.h>
  31 #else
  32     #ifdef __MACH__
  33         #include <sys/types.h>
  34         #include <utime.h>
  35         #include <sys/stat.h>
  36         #include <unistd.h>
  37     #else
  38         #include <stat.h>
  39         #include <unistd.h>
  40         #include <unix.h>
  41     #endif
  42 #endif
  43 #endif // !__WXPALMOS5__
  44
  45 #ifdef __OS2__
  46 // need to check for __OS2__ first since currently both
  47 // __OS2__ and __UNIX__ are defined.
  48     #include <process.h>
  49     #include "wx/os2/private.h"
  50     #ifdef __WATCOMC__
  51         #include <direct.h>
  52     #endif
  53     #include <io.h>
  54     #ifdef __EMX__
  55         #include <unistd.h>
  56     #endif
  57 #elif defined(__UNIX__)
  58     #include <unistd.h>
  59     #include <dirent.h>
  60 #endif
  61
  62 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  63 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__WXWINCE__) && !defined(__CYGWIN__)
  64     #include <direct.h>
  65     #include <dos.h>
  66     #include <io.h>
  67 #endif // __WINDOWS__
  68 #endif // native Win compiler
  69
  70 #if defined(__DOS__)
  71     #ifdef __WATCOMC__
  72         #include <direct.h>
  73         #include <dos.h>
  74         #include <io.h>
  75     #endif
  76     #ifdef __DJGPP__
  77         #include <io.h>
  78         #include <unistd.h>
  79     #endif
  80 #endif
  81
  82 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  83                     // this (3.1 I believe) and how to test for it.
  84                     // If this works for Borland 4.0 as well, then no worries.
  85     #include <dir.h>
  86 #endif
  87
  88 #ifndef __WXPALMOS5__
  89 #ifndef __WXWINCE__
  90     #include  <fcntl.h>       // O_RDONLY &c
  91 #endif
  92 #endif // !__WXPALMOS5__
  93 // ----------------------------------------------------------------------------
  94 // constants
  95 // ----------------------------------------------------------------------------
  96
  97 #if defined(__VISUALC__) || defined(__DIGITALMARS__)
  98     typedef int mode_t;
  99 #endif
 100
 101 #ifdef __WXWINCE__
 102     typedef long off_t;
 103 #else
 104     // define off_t
 105     #if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
 106         #include  <sys/types.h>
 107     #else
 108         typedef long off_t;
 109     #endif
 110 #endif
 111
 112 #if (defined(__VISUALC__) && !defined(__WXWINCE__)) || ( defined(__MWERKS__) && defined( __INTEL__) )
 113     typedef _off_t off_t;
 114 #elif defined(__SYMANTEC__)
 115     typedef long off_t;
 116 #elif defined(__MWERKS__) && !defined(__INTEL__) && !defined(__MACH__)
 117     typedef long off_t;
 118 #elif defined(__WXPALMOS5__)
 119     typedef long off_t;
 120 #endif
 121
 122 enum wxSeekMode
 123 {
 124   wxFromStart,
 125   wxFromCurrent,
 126   wxFromEnd
 127 };
 128
 129 enum wxFileKind
 130 {
 131   wxFILE_KIND_UNKNOWN,
 132   wxFILE_KIND_DISK,     // a file supporting seeking to arbitrary offsets
 133   wxFILE_KIND_TERMINAL, // a tty
 134   wxFILE_KIND_PIPE      // a pipe
 135 };
 136
 137 // ----------------------------------------------------------------------------
 138 // declare our versions of low level file functions: some compilers prepend
 139 // underscores to the usual names, some also have Unicode versions of them
 140 // ----------------------------------------------------------------------------
 141
 142 // Wrappers around Win32 api functions like CreateFile, ReadFile and such
 143 // Implemented in filefnwce.cpp
 144 #if defined( __WXWINCE__)
 145     typedef __int64 wxFileOffset;
 146     #define wxFileOffsetFmtSpec _("I64")
 147     WXDLLIMPEXP_BASE int wxCRT_Open(const wxChar *filename, int oflag, int WXUNUSED(pmode));
 148     WXDLLIMPEXP_BASE int wxCRT_Access(const wxChar *name, int WXUNUSED(how));
 149     WXDLLIMPEXP_BASE int wxClose(int fd);
 150     WXDLLIMPEXP_BASE int wxFsync(int WXUNUSED(fd));
 151     WXDLLIMPEXP_BASE int wxRead(int fd, void *buf, unsigned int count);
 152     WXDLLIMPEXP_BASE int wxWrite(int fd, const void *buf, unsigned int count);
 153     WXDLLIMPEXP_BASE int wxEof(int fd);
 154     WXDLLIMPEXP_BASE wxFileOffset wxSeek(int fd, wxFileOffset offset, int origin);
 155     #define wxLSeek wxSeek
 156     WXDLLIMPEXP_BASE wxFileOffset wxTell(int fd);
 157
 158     // always Unicode under WinCE
 159     #define   wxCRT_MkDir      _wmkdir
 160     #define   wxCRT_RmDir      _wrmdir
 161     #define   wxCRT_Stat       _wstat
 162     #define   wxStructStat struct _stat
 163 #elif (defined(__WXMSW__) || defined(__OS2__)) && !defined(__WXPALMOS__) && \
 164       ( \
 165         defined(__VISUALC__) || \
 166         defined(__MINGW64__) || \
 167         (defined(__MINGW32__) && !defined(__WINE__) && \
 168                                 wxCHECK_W32API_VERSION(0, 5)) || \
 169         defined(__MWERKS__) || \
 170         defined(__DMC__) || \
 171         defined(__WATCOMC__) || \
 172         defined(__BORLANDC__) \
 173       )
 174
 175     #undef wxHAS_HUGE_FILES
 176
 177     // detect compilers which have support for huge files
 178     #if defined(__VISUALC__)
 179         #define wxHAS_HUGE_FILES 1
 180     #elif defined(__MINGW32__) || defined(__MINGW64__)
 181         #define wxHAS_HUGE_FILES 1
 182     #elif defined(_LARGE_FILES)
 183         #define wxHAS_HUGE_FILES 1
 184     #endif
 185
 186     // other Windows compilers (DMC, Watcom, Metrowerks and Borland) don't have
 187     // huge file support (or at least not all functions needed for it by wx)
 188     // currently
 189
 190     #ifdef wxHAS_HUGE_FILES
 191         typedef wxLongLong_t wxFileOffset;
 192         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 193     #else
 194         typedef off_t wxFileOffset;
 195     #endif
 196
 197
 198     // functions
 199
 200     // MSVC and compatible compilers prepend underscores to the POSIX function
 201     // names, other compilers don't and even if their later versions usually do
 202     // define the versions with underscores for MSVC compatibility, it's better
 203     // to avoid using them as they're not present in earlier versions and
 204     // always using the native functions spelling is easier than testing for
 205     // the versions
 206     #if defined(__BORLANDC__) || defined(__DMC__) || defined(__WATCOMC__) || defined(__MINGW64__)
 207         #define wxPOSIX_IDENT(func)    ::func
 208     #else // by default assume MSVC-compatible names
 209         #define wxPOSIX_IDENT(func)    _ ## func
 210         #define wxHAS_UNDERSCORES_IN_POSIX_IDENTS
 211     #endif
 212
 213     // at least Borland 5.5 doesn't like "struct ::stat" so don't use the scope
 214     // resolution operator present in wxPOSIX_IDENT for it
 215     #ifdef __BORLANDC__
 216         #define wxPOSIX_STRUCT(s)    struct s
 217     #else
 218         #define wxPOSIX_STRUCT(s)    struct wxPOSIX_IDENT(s)
 219     #endif
 220
 221     // first functions not working with strings, i.e. without ANSI/Unicode
 222     // complications
 223     #define   wxClose      wxPOSIX_IDENT(close)
 224
 225     #if defined(__MWERKS__)
 226         #if __MSL__ >= 0x6000
 227             #define wxRead(fd, buf, nCount)  _read(fd, (void *)buf, nCount)
 228             #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)
 229         #else
 230             #define wxRead(fd, buf, nCount)\
 231                   _read(fd, (const char *)buf, nCount)
 232             #define wxWrite(fd, buf, nCount)\
 233                   _write(fd, (const char *)buf, nCount)
 234         #endif
 235     #else // __MWERKS__
 236         #define wxRead         wxPOSIX_IDENT(read)
 237         #define wxWrite        wxPOSIX_IDENT(write)
 238     #endif
 239
 240     #ifdef wxHAS_HUGE_FILES
 241         #ifndef __MINGW64__
 242             #define   wxSeek       wxPOSIX_IDENT(lseeki64)
 243             #define   wxLseek      wxPOSIX_IDENT(lseeki64)
 244             #define   wxTell       wxPOSIX_IDENT(telli64)
 245         #else
 246             // unfortunately, mingw-W64 is somewhat inconsistent...
 247             #define   wxSeek       _lseeki64
 248             #define   wxLseek      _lseeki64
 249             #define   wxTell       _telli64
 250         #endif
 251     #else // !wxHAS_HUGE_FILES
 252         #define   wxSeek       wxPOSIX_IDENT(lseek)
 253         #define   wxLseek      wxPOSIX_IDENT(lseek)
 254         #define   wxTell       wxPOSIX_IDENT(tell)
 255     #endif // wxHAS_HUGE_FILES/!wxHAS_HUGE_FILES
 256
 257     #ifndef __WATCOMC__
 258          #if !defined(__BORLANDC__) || (__BORLANDC__ > 0x540)
 259              // NB: this one is not POSIX and always has the underscore
 260              #define   wxFsync      _commit
 261
 262              // could be already defined by configure (Cygwin)
 263              #ifndef HAVE_FSYNC
 264                  #define HAVE_FSYNC
 265              #endif
 266         #endif // BORLANDC
 267     #endif
 268
 269     #define   wxEof        wxPOSIX_IDENT(eof)
 270
 271     // then the functions taking strings
 272     #if wxUSE_UNICODE
 273         #if wxUSE_UNICODE_MSLU
 274             // implement the missing file functions in Win9x ourselves
 275             #if defined( __VISUALC__ ) \
 276                 || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
 277                 || ( defined(__MWERKS__) && defined(__WXMSW__) ) \
 278                 || ( defined(__BORLANDC__) && (__BORLANDC__ > 0x460) ) \
 279                 || defined(__DMC__)
 280
 281                 WXDLLIMPEXP_BASE int wxMSLU__wopen(const wxChar *name,
 282                                                    int flags, int mode);
 283                 WXDLLIMPEXP_BASE int wxMSLU__waccess(const wxChar *name,
 284                                                      int mode);
 285                 WXDLLIMPEXP_BASE int wxMSLU__wmkdir(const wxChar *name);
 286                 WXDLLIMPEXP_BASE int wxMSLU__wrmdir(const wxChar *name);
 287
 288                 WXDLLIMPEXP_BASE int
 289                 wxMSLU__wstat(const wxChar *name, wxPOSIX_STRUCT(stat) *buffer);
 290                 WXDLLIMPEXP_BASE int
 291                 wxMSLU__wstati64(const wxChar *name,
 292                                  wxPOSIX_STRUCT(stati64) *buffer);
 293             #endif // Windows compilers with MSLU support
 294
 295             #define   wxCRT_Open       wxMSLU__wopen
 296
 297             #define   wxCRT_Access     wxMSLU__waccess
 298             #define   wxCRT_MkDir      wxMSLU__wmkdir
 299             #define   wxCRT_RmDir      wxMSLU__wrmdir
 300             #ifdef wxHAS_HUGE_FILES
 301                 #define   wxCRT_Stat   wxMSLU__wstati64
 302             #else
 303                 #define   wxCRT_Stat   wxMSLU__wstat
 304             #endif
 305         #else // !wxUSE_UNICODE_MSLU
 306             #ifdef __BORLANDC__
 307                 #if __BORLANDC__ >= 0x550 && __BORLANDC__ <= 0x551
 308                     WXDLLIMPEXP_BASE int wxCRT_Open(const wxChar *pathname,
 309                                                     int flags, mode_t mode);
 310                 #else
 311                     #define   wxCRT_Open       _wopen
 312                 #endif
 313                 #define   wxCRT_Access     _waccess
 314                 #define   wxCRT_MkDir      _wmkdir
 315                 #define   wxCRT_RmDir      _wrmdir
 316                 #ifdef wxHAS_HUGE_FILES
 317                     #define   wxCRT_Stat       _wstati64
 318                 #else
 319                     #define   wxCRT_Stat       _wstat
 320                 #endif
 321             #else
 322                 #define   wxCRT_Open       _wopen
 323                 #define   wxCRT_Access     _waccess
 324                 #define   wxCRT_MkDir      _wmkdir
 325                 #define   wxCRT_RmDir      _wrmdir
 326                 #ifdef wxHAS_HUGE_FILES
 327                     #define   wxCRT_Stat       _wstati64
 328                 #else
 329                     #define   wxCRT_Stat       _wstat
 330                 #endif
 331             #endif
 332         #endif // wxUSE_UNICODE_MSLU/!wxUSE_UNICODE_MSLU
 333     #else // !wxUSE_UNICODE
 334         #define   wxCRT_Open       wxPOSIX_IDENT(open)
 335         #define   wxCRT_Access     wxPOSIX_IDENT(access)
 336         #define   wxCRT_MkDir      wxPOSIX_IDENT(mkdir)
 337         #define   wxCRT_RmDir      wxPOSIX_IDENT(rmdir)
 338         #ifdef wxHAS_HUGE_FILES
 339             #define   wxCRT_Stat       wxPOSIX_IDENT(stati64)
 340         #else
 341             // Unfortunately Watcom is not consistent, so:-
 342             #if defined(__OS2__) && defined(__WATCOMC__)
 343                 #define   wxCRT_Stat       _stat
 344             #else
 345                 #define   wxCRT_Stat       wxPOSIX_IDENT(stat)
 346             #endif
 347         #endif
 348     #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 349
 350     // Types: Notice that Watcom is the only compiler to have a wide char
 351     // version of struct stat as well as a wide char stat function variant.
 352     // This was dropped since OW 1.4 "for consistency across platforms".
 353     //
 354     // Borland is also special in that it uses _stat with Unicode functions
 355     // (for MSVC compatibility?) but stat with ANSI ones
 356     #ifdef __BORLANDC__
 357         #if wxUSE_UNICODE
 358             #define wxStructStat struct _stat
 359         #else
 360             #define wxStructStat struct stat
 361         #endif
 362     #else // !__BORLANDC__
 363         #ifdef wxHAS_HUGE_FILES
 364             #if wxUSE_UNICODE && wxONLY_WATCOM_EARLIER_THAN(1,4)
 365                 #define wxStructStat struct _wstati64
 366             #else
 367                 #define wxStructStat struct _stati64
 368             #endif
 369         #else
 370             #if wxUSE_UNICODE && wxONLY_WATCOM_EARLIER_THAN(1,4)
 371                 #define wxStructStat struct _wstat
 372             #else
 373                 #define wxStructStat struct _stat
 374             #endif
 375         #endif
 376     #endif // __BORLANDC__/!__BORLANDC__
 377
 378     // constants (unless already defined by the user code)
 379     #ifdef wxHAS_UNDERSCORES_IN_POSIX_IDENTS
 380         #ifndef O_RDONLY
 381             #define   O_RDONLY    _O_RDONLY
 382             #define   O_WRONLY    _O_WRONLY
 383             #define   O_RDWR      _O_RDWR
 384             #define   O_EXCL      _O_EXCL
 385             #define   O_CREAT     _O_CREAT
 386             #define   O_BINARY    _O_BINARY
 387         #endif
 388
 389         #ifndef S_IFMT
 390             #define   S_IFMT      _S_IFMT
 391             #define   S_IFDIR     _S_IFDIR
 392             #define   S_IFREG     _S_IFREG
 393         #endif
 394     #endif // wxHAS_UNDERSCORES_IN_POSIX_IDENTS
 395
 396     #ifdef wxHAS_HUGE_FILES
 397         // wxFile is present and supports large files. Currently wxFFile
 398         // doesn't have large file support with any Windows compiler (even
 399         // Win64 ones).
 400         #if wxUSE_FILE
 401             #define wxHAS_LARGE_FILES
 402         #endif
 403     #endif
 404
 405     // it's a private define, undefine it so that nobody gets tempted to use it
 406     #undef wxHAS_HUGE_FILES
 407 #elif defined (__WXPALMOS__)
 408     typedef off_t wxFileOffset;
 409 #ifdef _LARGE_FILES
 410     #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 411     wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t), BadFileSizeType );
 412     // wxFile is present and supports large files
 413     #ifdef wxUSE_FILE
 414         #define wxHAS_LARGE_FILES
 415     #endif
 416     // wxFFile is present and supports large files
 417     #if SIZEOF_LONG == 8 || defined HAVE_FSEEKO
 418         #define wxHAS_LARGE_FFILES
 419     #endif
 420 #else
 421     #define wxFileOffsetFmtSpec _T("")
 422 #endif
 423     #define   wxClose      close
 424     #define   wxRead       ::read
 425     #define   wxWrite      ::write
 426     #define   wxLseek      lseek
 427     #define   wxSeek       lseek
 428     #define   wxFsync      fsync
 429     #define   wxEof        eof
 430
 431     #define   wxCRT_MkDir      mkdir
 432     #define   wxCRT_RmDir      rmdir
 433
 434     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 435
 436     #define   wxStructStat struct stat
 437
 438     #define   wxCRT_Open       open
 439     #define   wxCRT_Stat       svfs_stat
 440     #define   wxCRT_Lstat      lstat
 441     #define   wxCRT_Access     access
 442
 443     #define wxHAS_NATIVE_LSTAT
 444 #else // Unix or Windows using unknown compiler, assume POSIX supported
 445     typedef off_t wxFileOffset;
 446     #ifdef _LARGE_FILES
 447         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 448         wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
 449                                 BadFileSizeType );
 450         // wxFile is present and supports large files
 451         #ifdef wxUSE_FILE
 452             #define wxHAS_LARGE_FILES
 453         #endif
 454         // wxFFile is present and supports large files
 455         #if SIZEOF_LONG == 8 || defined HAVE_FSEEKO
 456             #define wxHAS_LARGE_FFILES
 457         #endif
 458     #else
 459         #define wxFileOffsetFmtSpec _T("")
 460     #endif
 461     // functions
 462     #define   wxClose      close
 463     #define   wxRead       ::read
 464     #define   wxWrite      ::write
 465     #define   wxLseek      lseek
 466     #define   wxSeek       lseek
 467     #define   wxFsync      fsync
 468     #define   wxEof        eof
 469
 470     #define   wxCRT_MkDir      mkdir
 471     #define   wxCRT_RmDir      rmdir
 472
 473     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 474
 475     #define   wxStructStat struct stat
 476
 477     #define   wxCRT_Open       open
 478     #define   wxCRT_Stat       stat
 479     #define   wxCRT_Lstat      lstat
 480     #define   wxCRT_Access     access
 481
 482     #define wxHAS_NATIVE_LSTAT
 483 #endif // platforms
 484
 485 // if the platform doesn't have symlinks, define wxCRT_Lstat to be the same as
 486 // wxCRT_Stat to avoid #ifdefs in the code using it
 487 #ifndef wxHAS_NATIVE_LSTAT
 488     #define wxCRT_Lstat wxCRT_Stat
 489 #endif
 490
 491 inline int wxAccess(const wxString& path, mode_t mode)
 492     { return wxCRT_Access(path.fn_str(), mode); }
 493 inline int wxOpen(const wxString& path, int flags, mode_t mode)
 494     { return wxCRT_Open(path.fn_str(), flags, mode); }
 495
 496 // FIXME-CE: provide our own implementations of the missing CRT functions
 497 #ifndef __WXWINCE__
 498 inline int wxStat(const wxString& path, wxStructStat *buf)
 499     { return wxCRT_Stat(path.fn_str(), buf); }
 500 inline int wxLstat(const wxString& path, wxStructStat *buf)
 501     { return wxCRT_Lstat(path.fn_str(), buf); }
 502 inline int wxRmDir(const wxString& path)
 503     { return wxCRT_RmDir(path.fn_str()); }
 504 #if defined(__WINDOWS__) || (defined(__OS2__) && defined(__WATCOMC__))
 505 inline int wxMkDir(const wxString& path, mode_t WXUNUSED(mode) = 0)
 506     { return wxCRT_MkDir(path.fn_str()); }
 507 #else
 508 inline int wxMkDir(const wxString& path, mode_t mode)
 509     { return wxCRT_MkDir(path.fn_str(), mode); }
 510 #endif
 511 #endif // !__WXWINCE__
 512
 513 #ifdef O_BINARY
 514     #define wxO_BINARY O_BINARY
 515 #else
 516     #define wxO_BINARY 0
 517 #endif
 518
 519 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 520 //
 521 // VisualAge C++ V4.0 cannot have any external linkage const decs
 522 // in headers included by more than one primary source
 523 //
 524 extern const int wxInvalidOffset;
 525 #else
 526 const int wxInvalidOffset = -1;
 527 #endif
 528
 529 // ----------------------------------------------------------------------------
 530 // functions
 531 // ----------------------------------------------------------------------------
 532 WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
 533
 534 // does the path exist? (may have or not '/' or '\\' at the end)
 535 WXDLLIMPEXP_BASE bool wxDirExists(const wxString& pathName);
 536
 537 WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
 538
 539 // Get filename
 540 WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
 541 WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
 542
 543 // Get directory
 544 WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
 545
 546 WXDLLIMPEXP_BASE void wxDos2UnixFilename(char *s);
 547 WXDLLIMPEXP_BASE void wxDos2UnixFilename(wchar_t *s);
 548
 549 WXDLLIMPEXP_BASE void wxUnix2DosFilename(char *s);
 550 WXDLLIMPEXP_BASE void wxUnix2DosFilename(wchar_t *s);
 551
 552 // Strip the extension, in situ
 553 WXDLLIMPEXP_BASE void wxStripExtension(char *buffer);
 554 WXDLLIMPEXP_BASE void wxStripExtension(wchar_t *buffer);
 555 WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer);
 556
 557 // Get a temporary filename
 558 WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
 559 WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf);
 560
 561 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
 562 WXDLLIMPEXP_BASE char* wxExpandPath(char *dest, const wxString& path);
 563 WXDLLIMPEXP_BASE wchar_t* wxExpandPath(wchar_t *dest, const wxString& path);
 564 // FIXME-UTF8: add some wxString version
 565
 566 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
 567 // and make (if under the home tree) relative to home
 568 // [caller must copy-- volatile]
 569 WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
 570                                    const wxString& envname = wxEmptyString,
 571                                    const wxString& user = wxEmptyString);
 572
 573 // Destructive removal of /./ and /../ stuff
 574 // FIXME-UTF8: deprecate these two (and similar)
 575 WXDLLIMPEXP_BASE char* wxRealPath(char *path);
 576 WXDLLIMPEXP_BASE wchar_t* wxRealPath(wchar_t *path);
 577 WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path);
 578
 579 // Allocate a copy of the full absolute path
 580 WXDLLIMPEXP_BASE wxChar* wxCopyAbsolutePath(const wxString& path);
 581
 582 // Get first file name matching given wild card.
 583 // Flags are reserved for future use.
 584 #define wxFILE  1
 585 #define wxDIR   2
 586 WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxString& spec, int flags = wxFILE);
 587 WXDLLIMPEXP_BASE wxString wxFindNextFile();
 588
 589 // Does the pattern contain wildcards?
 590 WXDLLIMPEXP_BASE bool wxIsWild(const wxString& pattern);
 591
 592 // Does the pattern match the text (usually a filename)?
 593 // If dot_special is true, doesn't match * against . (eliminating
 594 // `hidden' dot files)
 595 WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = true);
 596
 597 // Concatenate two files to form third
 598 WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 599
 600 // Copy file1 to file2
 601 WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
 602                                  bool overwrite = true);
 603
 604 // Remove file
 605 WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
 606
 607 // Rename file
 608 WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite = true);
 609
 610 // Get current working directory.
 611 #if WXWIN_COMPATIBILITY_2_6
 612 // If buf is NULL, allocates space using new, else
 613 // copies into buf.
 614 // IMPORTANT NOTE getcwd is know not to work under some releases
 615 // of Win32s 1.3, according to MS release notes!
 616 wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000) );
 617 // new and preferred version of wxGetWorkingDirectory
 618 // NB: can't have the same name because of overloading ambiguity
 619 #endif // WXWIN_COMPATIBILITY_2_6
 620 WXDLLIMPEXP_BASE wxString wxGetCwd();
 621
 622 // Set working directory
 623 WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
 624
 625 // Make directory
 626 WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
 627
 628 // Remove directory. Flags reserved for future use.
 629 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 630
 631 // Return the type of an open file
 632 WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd);
 633 WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(FILE *fp);
 634
 635 #if WXWIN_COMPATIBILITY_2_6
 636 // compatibility defines, don't use in new code
 637 wxDEPRECATED( inline bool wxPathExists(const wxChar *pszPathName) );
 638 inline bool wxPathExists(const wxChar *pszPathName)
 639 {
 640     return wxDirExists(pszPathName);
 641 }
 642 #endif //WXWIN_COMPATIBILITY_2_6
 643
 644 // permissions; these functions work both on files and directories:
 645 WXDLLIMPEXP_BASE bool wxIsWritable(const wxString &path);
 646 WXDLLIMPEXP_BASE bool wxIsReadable(const wxString &path);
 647 WXDLLIMPEXP_BASE bool wxIsExecutable(const wxString &path);
 648
 649 // ----------------------------------------------------------------------------
 650 // separators in file names
 651 // ----------------------------------------------------------------------------
 652
 653 // between file name and extension
 654 #define wxFILE_SEP_EXT        wxT('.')
 655
 656 // between drive/volume name and the path
 657 #define wxFILE_SEP_DSK        wxT(':')
 658
 659 // between the path components
 660 #define wxFILE_SEP_PATH_DOS   wxT('\\')
 661 #define wxFILE_SEP_PATH_UNIX  wxT('/')
 662 #define wxFILE_SEP_PATH_MAC   wxT(':')
 663 #define wxFILE_SEP_PATH_VMS   wxT('.') // VMS also uses '[' and ']'
 664
 665 // separator in the path list (as in PATH environment variable)
 666 // there is no PATH variable in Classic Mac OS so just use the
 667 // semicolon (it must be different from the file name separator)
 668 // NB: these are strings and not characters on purpose!
 669 #define wxPATH_SEP_DOS        wxT(";")
 670 #define wxPATH_SEP_UNIX       wxT(":")
 671 #define wxPATH_SEP_MAC        wxT(";")
 672
 673 // platform independent versions
 674 #if defined(__UNIX__) && !defined(__OS2__)
 675   // CYGWIN also uses UNIX settings
 676   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
 677   #define wxPATH_SEP          wxPATH_SEP_UNIX
 678 #elif defined(__WXPALMOS__)
 679   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
 680   #define wxPATH_SEP          wxPATH_SEP_UNIX
 681 #elif defined(__MAC__)
 682   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_MAC
 683   #define wxPATH_SEP          wxPATH_SEP_MAC
 684 #else   // Windows and OS/2
 685   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_DOS
 686   #define wxPATH_SEP          wxPATH_SEP_DOS
 687 #endif  // Unix/Windows
 688
 689 // this is useful for wxString::IsSameAs(): to compare two file names use
 690 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
 691 #if defined(__UNIX__) && !defined(__DARWIN__) && !defined(__OS2__)
 692   #define wxARE_FILENAMES_CASE_SENSITIVE  true
 693 #else   // Windows, Mac OS and OS/2
 694   #define wxARE_FILENAMES_CASE_SENSITIVE  false
 695 #endif  // Unix/Windows
 696
 697 // is the char a path separator?
 698 inline bool wxIsPathSeparator(wxChar c)
 699 {
 700     // under DOS/Windows we should understand both Unix and DOS file separators
 701 #if ( defined(__UNIX__) && !defined(__OS2__) )|| defined(__MAC__)
 702     return c == wxFILE_SEP_PATH;
 703 #else
 704     return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;
 705 #endif
 706 }
 707
 708 // does the string ends with path separator?
 709 WXDLLIMPEXP_BASE bool wxEndsWithPathSeparator(const wxString& filename);
 710
 711 // split the full path into path (including drive for DOS), name and extension
 712 // (understands both '/' and '\\')
 713 WXDLLIMPEXP_BASE void wxSplitPath(const wxString& fileName,
 714                              wxString *pstrPath,
 715                              wxString *pstrName,
 716                              wxString *pstrExt);
 717
 718 // find a file in a list of directories, returns false if not found
 719 WXDLLIMPEXP_BASE bool wxFindFileInPath(wxString *pStr, const wxString& szPath, const wxString& szFile);
 720
 721 // Get the OS directory if appropriate (such as the Windows directory).
 722 // On non-Windows platform, probably just return the empty string.
 723 WXDLLIMPEXP_BASE wxString wxGetOSDirectory();
 724
 725 #if wxUSE_DATETIME
 726
 727 // Get file modification time
 728 WXDLLIMPEXP_BASE time_t wxFileModificationTime(const wxString& filename);
 729
 730 #endif // wxUSE_DATETIME
 731
 732 // Parses the wildCard, returning the number of filters.
 733 // Returns 0 if none or if there's a problem,
 734 // The arrays will contain an equal number of items found before the error.
 735 // wildCard is in the form:
 736 // "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png"
 737 WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArrayString& descriptions, wxArrayString& filters);
 738
 739 // ----------------------------------------------------------------------------
 740 // classes
 741 // ----------------------------------------------------------------------------
 742
 743 #ifdef __UNIX__
 744
 745 // set umask to the given value in ctor and reset it to the old one in dtor
 746 class WXDLLIMPEXP_BASE wxUmaskChanger
 747 {
 748 public:
 749     // change the umask to the given one if it is not -1: this allows to write
 750     // the same code whether you really want to change umask or not, as is in
 751     // wxFileConfig::Flush() for example
 752     wxUmaskChanger(int umaskNew)
 753     {
 754         m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew);
 755     }
 756
 757     ~wxUmaskChanger()
 758     {
 759         if ( m_umaskOld != -1 )
 760             umask((mode_t)m_umaskOld);
 761     }
 762
 763 private:
 764     int m_umaskOld;
 765 };
 766
 767 // this macro expands to an "anonymous" wxUmaskChanger object under Unix and
 768 // nothing elsewhere
 769 #define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m)
 770
 771 #else // !__UNIX__
 772
 773 #define wxCHANGE_UMASK(m)
 774
 775 #endif // __UNIX__/!__UNIX__
 776
 777
 778 // Path searching
 779 class WXDLLIMPEXP_BASE wxPathList : public wxArrayString
 780 {
 781 public:
 782     wxPathList() {}
 783     wxPathList(const wxArrayString &arr)
 784         { Add(arr); }
 785
 786     // Adds all paths in environment variable
 787     void AddEnvList(const wxString& envVariable);
 788
 789     // Adds given path to this list
 790     bool Add(const wxString& path);
 791     void Add(const wxArrayString &paths);
 792
 793     // Find the first full path for which the file exists
 794     wxString FindValidPath(const wxString& filename) const;
 795
 796     // Find the first full path for which the file exists; ensure it's an
 797     // absolute path that gets returned.
 798     wxString FindAbsoluteValidPath(const wxString& filename) const;
 799
 800     // Given full path and filename, add path to list
 801     bool EnsureFileAccessible(const wxString& path);
 802
 803 #if WXWIN_COMPATIBILITY_2_6
 804     // Returns true if the path is in the list
 805     wxDEPRECATED( bool Member(const wxString& path) const );
 806 #endif
 807 };
 808
 809 #endif // _WX_FILEFN_H_